摘要
本研究以 2 2 8名 6～ 12岁儿童为研究对象 ,采用脑电波超慢涨落分析技术 (简称ET) ,重点探讨了与认知功能有关的α波 ( 8～ 13Hz)的分布特点。研究结果表明 :①α波在全脑 12个脑区的比率 ,因频率成分不同而表现出不同的分布特点 ;②α波在左右对称脑区的分布比率也因频率不同而表现出不同的左右脑优势。除左前颞叶的平均频率显著大于右前颞叶外 ,其他左右脑对称区域的平均频率的差异均不显著。α波平均频率的从高到低依次为枕叶、中央区、顶叶、左前颞叶、后颞叶、额叶、右前颞叶 ;③信息加工速度与α波的关系并不明显 ,快组和慢组被试的 6种频率 ( 8～13Hz)
In the present work, 12-channel electroencephalography (EEG) of 228 children aged from 6 to 12 were recorded and analyzed by Encephalofluctuography Technology (ET). The research put emphasis on the developmental characteristics of alpha band ranged from 8 to 13 Hertz. The results obtained were as follows:(1) The ratios of alpha band in 12 cerebral areas showed different distribution features in different frequency components.(2) Alpha band in the left and right symmetrical cerebral areas showed different left and right cerebral advantages under different frequencies. No marked difference was found in the left and right symmetrical cerebral areas in terms of the average frequency except that the average frequency of the left temporal area was larger than its symmetrical area in right hemisphere. The average frequency from the highest to the lowest of alpha band was in the occipital area, the central area, the parietal area, left anterior temporal area, posterior temporal area, the frontal area and the right anterior temporal area.(3) No marked difference was found in the relationship between the speed of information processing and alpha band. Good performers were not different from the bad performers in terms of ratios of 6 frequencies (8～13 Hz).
出处
《心理学探新》
CSSCI
2000年第4期32-37,共6页
Psychological Exploration
基金
国家自然科学基金项目! ( 39730 180 )
全国优秀博士论文专项基金项目! ( 19990 6)
关键词
脑电波超慢涨落分析
Α波
信息加工速度
儿童
发展
encephaloflutuography technology
alpha band
speed of information processing
children
development.
